Hugh johnston



(No Model.)

H. JOHNSTON.

PLOW GUARD AND UNDERSCORE. No. 368,290. Patented Aug. 16,1887.

N. PETERS, Phoiwlnhognphur. Washington, D. Cv

UNITED STATES PATENT OFFIcE,

HUGH JOHNSTON, OF TORONTO, ONTARIO, CANADA.

PLOW-GUARD AND UNDERSCORE.

SPECIFICATION forming part of Letters Patent No. 368,290, dated August 16, 1857.

Application filed July 6, 1886. Renewed June 20, 1881. Serial No. 211,844.

(No model.) Patented in Canada June 11, 1857,

To all whom it may concern.-

Be it known that I, HUGH J OHNSTON, a citizen of the Dominion of Canada, residing at Toronto, in the county of York and Province of Ontario, Canada, have invented a new and useful Improvement in Land-Flows, (for which I have obtained apatent in Canada, No. 26,922, bearing date June 11, 1887,) of which the following is a specification.

Reference being made to the accompanying drawing, in which the figure represents the beam, colter, point, &c., B representsin dotted lines a side view of the mold-board of a plow, A representing the point or share, C the beam, and D the colter, of a plow.

E represents an elevation on the point or share to prevent obstructions of the plow between the point of the share and the point of the colter, and also to act as an underscore to make the draft lighter on the team. The elevation E may be cast with the share, or separately cast and attached thereto by means of bolts or other fastenings.

I make no claim to the mold-board, share, beam, or colter, nor to the adjustable bearing which permits of the elevation, as per letter E, as I am aware that these are not new; but

TVhat I claim as my invention,and for which I now apply to secure a patent, is as follows:

The combination, in a plow, of the elevation E with the point A, colter D, beam C, and mold-board B, substantially as and for the purposes herein set forth.

Toronto, June 21, 1886.

HUGH JOHNSTON.

In presence 0f- J. BALDWIN HANDS, I. H. DENTON. 

